Water-soluble green-tea concentrates aim to boost metabolism and promote weight loss with huge amounts of antioxidants. Red raspberries' ketones work to boost the body's production of adiponectin, a protein hormone that suppresses appetite while increasing metabolism and energy levels. To take in the same amount of ketones contained in this supplement, a person would have to eat 90 pounds of raw raspberries, thus consuming more than 50,000 calories and 700 grams of fat. Recently featured on The Dr. Oz Show, the supplement's other ingredients include African mango extract, green tea, theobromine, and L-carnitine, which aid the ketones in purging waste from the bloodstream.